SpHr_bitClear(val, bit)
Test bit of val, equivalent to: val = val & ~(2^bit)
Example
variable val = 0
val = SpHr_bitSet(val, 1) // set bit one
if(SpHr_bitTest(val, 1)) // test bit one
val = SpHr_bitClear(val, 1) // clear bit one
endif